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Duda's Ground Yellow Sulfur Powder

by Duda Energy

99.5+% Pure Specifications (Usually over 99.9%)

Chemical Formula: S8

CAS# 7704-34-9

Synonyms: Brimstone, Sulphur

Sulfur is recovered during gas manufacturing as a molten sulfur. It is then cooled on a stainless steel belt and forms into a flake form. The flakes are then taken off the belt and ground into sulfur powder. The sulfur is without oil added and is EPA recognized as ok for Animal Feed / additive to animal foods. It is not considered suitable for human consumption.

Sublimed sulfur is recovered from the same manufacturing process, except it is precipitated from the gas in a vapor state rather than through the molten method. Altough there is no difference in the sulfur itself, this is considered to be safe for human consumption since the extra step ensures there is nothing harmful in it and it is then considered to be USP grade. USP grade sulfur is no longer produced in the united states and is difficult to obtain.

Sulfur has a lot of many uses:

  • Fertilizers / soil treatment (commonly used in large farms)
  • Adjust the pH of soil, which is essential for certain fruits such as blueberries
  • Excelent as an additive to a lawn/garden
  • Rids of pests (spread into a garden to scare away snakes)
  • Kills/Repels Insects (keeps ticks off a dog's hair)
  • Burning of sulfur kills insects with sulfur dioxide fumes

Sulfur is insoluable in water. Only mixtures in water can be made.

Sulfur powder has a low flammability rating. It can be compared to wood in terms of flammability. When burned, it creates sulfur dioxide, a poisonous gas which can cause harm to animals and may also cause many health hazards if burned in large quantities (acid rain is one of them). In the old days, people used to burn sulfur powder to remove pests and clean out fields. This is not really done anymore and it is strongly recommended to not burn it anywhere near where people live because of the health hazard. Sulfur candles used to be widely available for burning sulfur. The candles were a mixture of sulfur and other ingrediants to help it burn, Note that pure solid sulfur powder does not burn easily because it requires a lot of oxygen to get a nice blue flame. The only way to make it burn well is to mix it well into the air. This can be done with a specially made sulfur burner. We do not recommend burning sulfur powder and are not responsible for any damages to anything or anyone by doing so.

Specialized applications
Sulfur is used as a light-generating medium in the rare lighting fixtures known as sulfur lamps.


This chemical is not classified as hazardous if shipped domestically by ground mail. It can only be shipped by Fedex Ground.


bag of sulfur
Ground Sulfur Powder, 50 lb Bag
• Ground Yellow Sulfur in 50 lb Bags
• Rubber Maker's Sulfur 99.5+% Industrial Grade
• Motor Freight Shipments Only - Need more than 100 Bags? Contact us for special pricing.
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